| 石墨型C3N4的固态合成及嵌锂性能研究 |
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| 引用本文： | 杨晓晖,王红军,陆希峰,崔得良,张树永. 石墨型C3N4的固态合成及嵌锂性能研究[J]. 化学学报, 2009, 67(11): 1166-1170 |
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| 作者姓名： | 杨晓晖 王红军 陆希峰 崔得良 张树永 |
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| 作者单位： | 山东大学化学与化工学院,教育部胶体与界面化学重点实验室,济南,250100;山东大学晶体材料国家重点实验室,济南,250100 |
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| 基金项目： | 国家自然科学基金(No.20673068)资助项目 |
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| 摘 要： | 采用固态反应方法制备了石墨型C3N4. 采用XRD, FTIR, XPS对产物的组成和结构进行了表征. 研究了石墨型C3N4的电化学行为, 并将其用作负极材料组装成锂离子电池进行测试, 发现该材料具有一定的嵌锂能力, 但比容量低, 循环寿命短. 采用少量嵌入Mg2＋, Al3＋的方法对石墨型C3N4进行改性, 结果发现石墨型C3N4的充放电性能得到一定改善.
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| 关 键 词： | 石墨型C3N4 固态合成 电化学性质 锂离子电池 可逆嵌锂 |
| 收稿时间： | 2008-10-09 |
| 修稿时间： | 2008-12-20 |
Solid-state Synthesis of Graphite-like C3N4 and Its Reversible Li+ Intercalation |
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| Yang,Xiaohui,Wang,Hongjun,Lu,Xifeng,Cui,Deliang,Zhang,Shuyong. Solid-state Synthesis of Graphite-like C3N4 and Its Reversible Li+ Intercalation[J]. Acta Chimica Sinica, 2009, 67(11): 1166-1170 |
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| Authors: | Yang Xiaohui Wang Hongjun Lu Xifeng Cui Deliang Zhang Shuyong |
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| Affiliation: | a Education Ministry Key Laboratory of Colloid and Interface Chemistry;School of Chemistry and Chemical Engineering;Shandong University;Jinan 250100;b State Key Laboratory of Crystal Materials;Jinan 250100 |
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| Abstract: | Graphite-like carbon nitride(g-C3N4) was synthesized using a solid state method and characterized by XRD,FTIR and XPS.The electrochemical properties of the g-C3N4 were studied using both cyclic voltammetry and charge-discharge cycling.It was found that the g-C3N4 sample showed certain reversible intercalation capacity of Li+,but the capacity dropped sharply during the first few cycles.The poor reversi-bility could be ascribed mainly to the decomposition of C3N4 upon electroreduction.Modification of the g-C3... |
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| Keywords: | graphite-like C3N4 solid-state synthesis electrochemical property lithium-ion battery reversible lithium intercalation |
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